Can anyone tell me what the burgman 650 would be like for a 6'3" dude for long distance touring?
I don't know why but occasionally I really get the itch for an automatic rig when sitting in traffic.....

My buddy rides a Bergman 650 as his main bike. Takes it everywhere. I'm close to your height and have spent some miles on it. Overall I have zero complaints. The only issue for me is that after 31 years on traditional motorcycles, the feet forward seating position puts too much weight on my butt. I tried using my buddy's backrest but it's too close for my long legs. If it was my bike, I'd pony up for a custom Riches seat that pushed the step in the seat back a bit and invest in a taller aftermarket windscreen.

I agree, the automatic feature is wonderful when commuting or otherwise dealing with stop and go traffic.

The storage capacity is HUGE and with the addition of a Givi trunk would make it an excellent long distance ride.

I am 6'3" and have a Burgman. Great ride. Mine has a Corbin seat.I like the fact you can move around in different riding positions. There is a Burgman forum. Can't remember the name of it. Should be easy to find. There are many mods that can be done to make it the perfect ride.

I am 6-2 and ride my Burgman everywhere and have for 6 years, I took my backrest off and installed a Subaru headrest bent to slide into the stock Burgy backrest holes. Great comfort and support, plus it gives my something to hold onto.

Cannot reply to the tall question as i am only 5' 8", but as for the feet forward position that's not a problem. Just move your feet back to where you are comfortable, there is more than enough room on the floor and foot rest to move your feet back several inches.

I ride a 650 Burgman and I'm 6.1 with a 34 " inseam. I make backrest's for both the 650 and 400 Burgman's. These will give you 2 to 3" of additional legroom and provide lower back support. Check out the post's on the Burgman USA forum. Do a search for bearcat backrest.